Pack and execute section in MSD Axapta

Pack and unpack
This method is used for storing last values. It is used in conjunction with unpack(), which loads the last value
stored. However unpack() is not a base method. If a new dialog field has been added, pack() is overridden to store the values from the dialog.

Execute section

Each section in the design has the executeSection method, which is used to print the section. The method can be used to validate whether or not the section must be printed